Lion and remote lock

This evening I was testing the remote lock feature of mobileme/icloud on my ipad and iphone just to see that it worked using the find my iphone app on my iPad 2.
I noticed that my Early 2011 Macbook Pro 13" running Lion 10.7.1 was showing under devices (presumably from when I installed a previous beta of icloud and forgot to remove it) so I tested the remote lock feature and entered a 4 digit pin and clicked lock. My Macbook pro then rebooted and asked to join a wifi network and then presented me with the pincode screen. So far so good, I was impressed that if I ever did leave or loose it somewhere this would help.
At the point I entered the pin is where my satisfaction dropped as it stated "Wrong passcode, try again" even though I know this is the passcode I set. My macbook pro is now a brick, I cannot get into recovery mode, boot from a cd, unlock. Can anyone give me any help and advice as to how I can reverse this and get back into my macbook? Will I have to call apple or is there a fix for this?
Cheers
Nick

Hi MattToner,
I did resolve the problem but it wasnt a quick fix. Remote lock sets a variable in the PRAM that doesnt clear by holding Cmd Alt P and R. I made a bootable dvd of Lion but every time I booted it, it just went back to the remote lock screen.
I had to reinstall snow leopard by rebooting with the snowleopard cd in the drive and holding down alt, wiping the hard drive and doing a standard installation. Once I was booted into snow leopard, i opened the terminal app and typed the following to clear the nvram:
sudo nvram -c
This will ask you for your password and then clear the nvram. Im guessing you could plug in a USB/Firewire hard drive and install Snow Leopard to that without messing with your lion install but havent tested so I couldnt tell you.
I then installed Lion which all went fine and I have been using my macbook pro on lion ever since (with remote lock disabled I might add!)
Hope this works.

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